User manual LG KG5200ER

[. . . ] website http://www. lgservice. com LG LG Room Air Conditioner SERVICE MANUAL MODEL: ACQ058PL KG5200ER LW5200ER WG5200ER WG6000R KG6000R M5404R WG5200R M6004R HBLG6000R HBLG5200E ACQ052PK LW7000R WM-5031 LW050CE LWJ0515PAG LW5200R CAUTION · BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1. 1 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1. 2 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] After discharging the refrigerant completely, unbraze the interconnecting tube of the capillary tube. When replacing the refrigerating cycle, be sure to discharge the refrigerant by using a refrigerant recovery system. After discharging the unit completely, remove the desired components, and unbraze the pinch-off tubes. Solder service valves into the pinch-off tube ports, leaving the valves open. After completing the above procedures, the valve must be closed and left in place on the system for any subsequent procedures. Slowly open manifold valves A and B with two full turns counterclockwise and leave the valves closed. The vacuum pump is now pulling through valves A and B up to valve C by means of manifold and the entire system. CAUTION : If high vacuum equipment is used, just crack valves A and B for a few minutes, then open slowly with the two full turns counter-clockwise. Operate the vacuum pump for 20 to 30 minutes, until 600 micron vacuum is obtained. A rise in pressure would indicate a possible leak or moisture remaining in the system. Remove the hose from the vacuum pump and place it on the charging cylinder. If the total charge cannot be put in the high-side, the balance will be put in the suction line through the access valve which is installed as the system is opened. With the unit running, open valve B and add the balance of the charge. Repeat steps B and C until the balance of the charge is in the system. When the unit is operating correctly, use the pinch-off tool with the unit still running and the clamp on the pinch-off tube. Using a tube cutter, cut the pinch-off tube about 2 inches from the pinch-off tool. Turn off the unit, allow setting for a while and then test the leakage of the pinch-off connection. --11-- Equipment needed: Vacuum pump, charging cylinder, manifold gauge, brazing equipment, pinch-off tool capable of making a vapor proof seal, leak detector, tubing cutter, hand tools to remove components and service valve. COMPOUND GAUGE MANIFOLD GAUGE B A CONDENSER (HIGH PRESSURE SIDE) SEE INSETS BELOW COMPRESSOR EVAPORATOR (LOW PRESSURE SIDE) CAPILLARY TUBE LO HI CHARGING CYLINDER A B EXTERNAL VACUUM PUMP B A C Figure 20A-Pulling Vacuum Figure 20B-Charging --12-- 3. INSTALLATION This air conditioner is designed with a button-down chassis so it can be easily installed in a window. 3. 1 SELECT THE BEST LOCATION 1. To prevent vibration and noise, make sure the unit is installed securely and firmly. The outside of the cabinet must extend outward for at least 10" and there should be no obstacles, such as a fence or wall, within 20" from the back of the cabinet because it will prevent heat radiation of the condenser. Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner. CAUTION All side louvers of the cabinet must remain exposed on the outdside of the structure. [. . . ] Fan CAUSE REMEDY If cracked, out of balance, or partially missing, replace it. If the motor hums or noise appears to be internal while running, replace motor. If the wires are disconnected, refer to wiring diagram for identification, and replace the wires. Check the wire connections; If not according to the wiring diagram, correct the connections. [. . . ]